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Bladder
Bladder tumors - benign
Post-operative granulomas
Author: Nat Pernick, M.D. (see Authors page)
Revised: 27 February 2010, last major update February 2010
Copyright: (c) 2002-2010, PathologyOutlines.com, Inc.
Definition
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● Reactive lesion that occurs after catheterization or diathermy (Acta Pathol Jpn 1986;36:1813)
● Foreign body granulomas may occur post-bladder neck suspension (Int Urol Nephrol 2001;33:351) or other surgery (AJCP 1986;86:430)
Terminology
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Epidemiology
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Sites
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Etiology
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● May be due to metals deposited during diathermy, local reaction to tissue necrosis or hypersensitivity reaction (Urology 1990;35:454)
● Includes “starch” granulomas (Urology 1976;8:507)
Clinical features
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Prognostic factors
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Case reports
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Treatment
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Clinical images
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Gross description (Macroscopy)
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Gross images
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Micro description (Histopathology)
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● Palisading histiocytes or giant cells surrounding central necrosis (resembling rheumatoid nodules) or foreign body type granuloma
● Lesions heal by fibrous scarring
Micro images
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Cytology description
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Cytology images
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Positive stains
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Negative stains
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Electron microscopy descriptions
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Electron microscopy images
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Molecular / cytogenetics description
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Molecular / cytogenetics images
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Differential Diagnosis
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Additional references
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End of Bladder > Benign tumors > Post-operative granulomas
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